What's Changed
- Feature: Merge Insiders-exclusive features by @billz in #2152 (the big merge 🎉)
- Feature: Extended user theme customization support by @billz in #2144
- Bump browserslist from 4.16.6 to 4.28.8 by @dependabot[bot] in #2150
- Bump brace-expansion from 1.1.13 to 1.1.18 by @dependabot[bot] in #2145
- Bump immutable from 3.8.3 to 3.8.4 by @dependabot[bot] in #2153
- Update release version: 3.5.6 by @billz in #2155
Full Changelog: 3.5.5...3.5.6